CICERO'S CAVEAT ON CRITICISM:

True Story: Marcus Tullius Cicero, proud owner of an ego the size of Mt. Vesuvius, once overheard Julius Caesar discussing one of his (Cicero's) poems. Caesar was full of praise for the piece, but thought it could have been improved upon in small ways. Upon hearing this, Cicero asked his brother Quintus to go bring up the poem in conversation with Caesar and find out exactly how it could have been better, but then cheerfully added that Caesar's criticism had not made him a bit less pleased with his work.

ERGO: just because a reviewer finds something to criticize does not mean that they hated the whole piece, or that the creator should not be proud of his efforts.